From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263416AbTEJN3g (ORCPT ); Sat, 10 May 2003 09:29:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264101AbTEJN3f (ORCPT ); Sat, 10 May 2003 09:29:35 -0400 Received: from 12-250-182-80.client.attbi.com ([12.250.182.80]:52235 "EHLO sonny.eddelbuettel.com") by vger.kernel.org with ESMTP id S263416AbTEJN3f (ORCPT ); Sat, 10 May 2003 09:29:35 -0400 Date: Sat, 10 May 2003 08:42:15 -0500 From: Dirk Eddelbuettel To: linux-kernel@vger.kernel.org Subject: Tyan 2466 SMP lock with 2.4.21-rc1, HIGHMEM + heavy disk i/o Message-ID: <20030510134215.GA16397@sonny.eddelbuettel.com> References: <20030501135228.GA19643@sonny.eddelbuettel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030501135228.GA19643@sonny.eddelbuettel.com> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org System: Tyan 2466 MPX board, 2 Athlon 1800MP, bios 1.01 from March 2002 1 gb ram, ibm + maxtor ide disks, ide cdrom + cdrw ati rage 128, sb pci 128, on-board 3c905 nic, ps/2 mouse no other cards hardware configuration unaltered since June of last year Enabling or disabling the HIGHME patch is enough to trigger/suppress hard locking. When HIGHMEM is enabled, locking occurs very easily when trying to copy a (cloop-mounted) Knoppix image, or even when compiling a kernel. I run fairly stock kernels (from Debian kernel source packages) with the win4lin patch as the only external patch. ACPI is disabled. Disk access is not tuned in any way, DMA gets enabled by default. Dirk -- Don't drink and derive. Alcohol and algebra don't mix.